LH, take some responsibility here; you decided to name your imaginary playmate with a word that sounded halfway to chinga anyway, and it immediately brought about the perception that you yourself were uno pobro gringo chingado, cabronito. It stands perfectly to reason in the invented language with which you named him that his sister (feminine) would be either Chingate, Chongita or, for simplicity, Chinga.

So chinga te, Chinga she is. I invented her after all, and I say she is Chongo's sister.